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   Articles with "aryl dihydro" as a keyword



Synthesis, crystal structure, antioxidant activity and dft study of 2-aryl-2,3-dihydro-4H-[1,3]thiazino[3,2-a]benzimidazol-4-One

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recommendations! Published in 2020 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2019.127036

Abstract: Abstract The compound 2-aryl-2,3-dihydro-4H- [1,3]thiazino[3,2-a]benzimidazol-4-one (C16H12N2OS) (III) was synthesized. The compound crystallized in a monoclinic crystal system with P21/c space group as revealed by mono-crystal X-ray diffraction. The X-ray analysis and density functional theory complementary… read more here.

Keywords: antioxidant activity; dihydro thiazino; aryl dihydro; thiazino benzimidazol ... See more keywords
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Palladium-catalyzed double carbonylation of propargyl amines and aryl halides to access 1-aroyl-3-aryl-1,5-dihydro-2H-pyrrol-2-ones

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recommendations! Published in 2020 at "Organic chemistry frontiers"

DOI: 10.1039/d0qo00007h

Abstract: In this communication, we disclosed a palladium-catalyzed carbonylative procedure for the synthesis of 1-aroyl-3-aryl-1,5-dihydro-2H-pyrrol-2-ones from propargyl amines and aryl halides. By using TFBen as the CO source, the reaction provides a facile and straightforward access… read more here.

Keywords: propargyl amines; aryl dihydro; dihydro pyrrol; palladium catalyzed ... See more keywords
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Silica-Supported Ionic Liquids Prompted One-Pot Four-Component Synthesis of Pyrazolopyranopyrimidines, 3-methyl-4-aryl-4,5-dihydro-1H-pyrano[2,3-c]pyrazol-6-ones, and 1,6-diamino-2-oxo-1,2,3,4-tetrahydropyridine-3,5-dicarbonitriles

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recommendations! Published in 2017 at "Polycyclic Aromatic Compounds"

DOI: 10.1080/10406638.2015.1112821

Abstract: ABSTRACT Three methods have been used for synthesis of pyrazolopyranopyrimidines, 3-methyl-4-aryl-4,5-dihydro-1H-pyrano[2,3-c]pyrazol-6-ones, and 1,6-diamino-2-oxo-1,2,3,4-tetrahydropyridine-3,5-dicarbonitrile derivatives via four-component reactions under solvent-free conditions. Silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepiniumchloride (SB-DBU+Cl−), silica-bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO+Cl−), and nano silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (NSB-DBU+Cl−) as silica-supported… read more here.

Keywords: aryl dihydro; pyrazolopyranopyrimidines methyl; pyrano pyrazol; dihydro pyrano ... See more keywords
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Synthesis of Novel Biologically Important 5-Amino-2-Oxo-7-Aryl-3,7-Dihydro-2H-Pyrano[2,3-d]Thiazole-6-Carbonitriles in Trifluoroethanol (TFE) under Ultrasound Irradiation Condition and Their Antimicrobial Activity

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recommendations! Published in 2020 at "Polycyclic Aromatic Compounds"

DOI: 10.1080/10406638.2019.1711432

Abstract: A series of novel 5-amino-2-oxo-7-aryl-3,7-dihydro-2H-pyrano[2,3-d]thiazole-6-carbonitriles 5a–j have been synthesized by adopting a facile and simple methodology. The reaction of monochloroacetic ... read more here.

Keywords: pyrano thiazole; amino oxo; aryl dihydro; oxo aryl ... See more keywords
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Eco-Friendly Synthesis of 3-Aryl-2,3-dihydro-1,3,4-thiadiazoles Based on Benzofuran and Chromone Moieties

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recommendations! Published in 2020 at "Polycyclic Aromatic Compounds"

DOI: 10.1080/10406638.2020.1848890

Abstract: In consideration of green and efficient organic chemical methodology, we reported here a green, an efficient and convenient procedure for synthesis of 3-aryl-2,3-dihydro-1,3,4-thiadiazoles based on... read more here.

Keywords: aryl dihydro; dihydro thiadiazoles; synthesis aryl; thiadiazoles based ... See more keywords

Green synthesis of trans-(4-chlorophenyl)-7-aryl-6,7-dihydro[1,3]dioxolo[4,5-f][1]benzofuran-6-yl)methanones in an aqueous medium

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recommendations! Published in 2019 at "Journal of Chemical Research"

DOI: 10.1177/1747519819836527

Abstract: A three-component one-pot condensation of 2-[2-(4-chlorophenyl)-2-oxoethyl)]isoquinolinium bromide with benzo[1,3]dioxol-5-ol and an arylglyoxal in the presence of catalytic amounts of 1,4-diaza-bicyclo[2.2.2]octane in refluxing water gave a series of seven trans-(4-chlorophenyl)-7-aryl-6,7-dihydro[1,3]dioxolo[4,5-f][1]benzofuran-6-yl)methanones in excellent yield and in a… read more here.

Keywords: aryl dihydro; chlorophenyl aryl; dioxolo benzofuran; dihydro dioxolo ... See more keywords